first national park was Khao Yai in 1961, when the National Park Act B.E. 2504 was passed. The first marine park was Khao Sam Roi Yot, established in 1966...

Estuary - Laemson Marine National Park - Kraburi Estuary 122,046 301,580 Khao Sam Roi Yot Wetland 6,892 17,030 Ko Kra Archipelago 374 920 Ko Ra-Ko Phra Thong...